My friend had an A4 B7. It drunk a lot of oil though...he had to keep topping up the oil every month or so? lol I dunno why those engines are so thirsty. Something to keep in mind. Also, there's some common problem...can't remember what the exact issue was but I believe an engine part got damaged and he needed to replace a camshaft. In the end he had enough of it, had the car for only 6 months then sold it. So just make sure you do your research before buying an A4...